// Copyright 2023 Nautes Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package utils

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
)

func RemoveOwner(owner, object client.Object, scheme *runtime.Scheme) error {
	ownerInfos := object.GetOwnerReferences()

	newOwnerInfos := []metav1.OwnerReference{}
	for i, ownerInfo := range ownerInfos {
		gvk, err := apiutil.GVKForObject(owner, scheme)
		if err != nil {
			return err
		}

		if ownerInfo.APIVersion == gvk.GroupVersion().String() &&
			ownerInfo.Kind == gvk.Kind &&
			ownerInfo.UID == owner.GetUID() &&
			ownerInfo.Name == owner.GetName() {
			newOwnerInfos = ownerInfos[:i]
			newOwnerInfos = append(newOwnerInfos, ownerInfos[i+1:]...)
			break
		}
	}
	object.SetOwnerReferences(newOwnerInfos)
	return nil
}
